8 Best RMSc Footprint Optics

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Hey Shooters! Welcome to my review of the top 8 Best RMSc Footprint Optics in 2023

I have put the Best Red Dots that fit the RMSc Footprint to the test. With my subcompact pistols as the canvas, I embarked on a journey to find the ideal optic that seamlessly integrated into their compact design. 

After rigorous testing and countless rounds fired, one standout emerged victorious—the HOLOSUN HS507K-X2. This revolutionary red dot sight not only embraced the RMSc Footprint but also exhibited unparalleled reliability and performance.

Today, I share my expertise and first-hand experience, unveiling the top optic that embodies the spirit of innovation while effortlessly fitting the RMSc Footprint.

Top 8 RMSc Footprint Red Dot

1. HOLOSUN HS507K-X2 – Overall Best rmsc red dot

HOLOSUN HS507K X2 Multi-Reticle Red 2 MOA Dot & 32 MOA Circle Open Reflex Pistol Sight - Durable Shake-Awake Parallax-Free Aluminum Sight for Subcompact Handguns
  • HOLOSUN RED DOT SIGHT - The HS507K X2 is an open reflex...
  • HIGH PERFORMANCE - This red dot sight features...
  • MULTI-RETICLE SYSTEM - This Holosun sight is equipped...
  • SHAKE AWAKE TECHNOLOGY - Extends battery life by...
  • SPECIFICATION - Reticle: Red 2 MOA Dot & 32 MOA Circle;...

The HS507K-X2 micro red dot sight is a compact and lightweight optic designed to fit the RMSc Footprint, offering fast target acquisition and a durable build.

Fast Target Red Dot Acquisition: The HS507K-X2 allows shooters to quickly and accurately pick up the reticle, enabling swift target acquisition.

Snag-free Holster Draw: Its small size profile ensures smooth holstering and drawing of the pistol without any obstructions or snagging.

ShakeAwake Technology: The motion sensor activates the red dot reticle when movement is detected and automatically turns it off when at rest, conserving battery life (CR1632 battery).

Side Battery Access: The sight’s battery can be accessed from the side, eliminating the need for sight removal or re-zeroing, providing convenience and ease of use.

Why I love it: The HS507K truly impressed me with its performance. The fast target acquisition allowed me to acquire targets swiftly and accurately, while the snag-free holster draw ensured smooth and hassle-free handling. 


  • Crisp sight picture
  • Compact and lightweight design
  • Long battery life with ShakeAwake Technology
  • Side battery access for easy maintenance


  • Small screws on the battery side tray may be difficult to handle
  • Challenging to shoot with both eyes open

2. HOLOSUN HS407K X2 – Budget Best RMSc Footprint Optics

HOLOSUN HS407K-X2 Classic Reflex Red Dot Only Sight
  • HOLOSUN RED DOT SIGHT - The HS407K X2 is an open reflex...
  • HIGH PERFORMANCE - This reflex sight for handgun...
  • SHAKE AWAKE TECHNOLOGY - Extends battery life by...
  • MULTILAYER REFLECTIVE GLASS - This red dot sight is...
  • SPECIFICATION - Reticle: 6 MOA Dot; Light Wavelength:...

The HS407K-X2 is a compact and durable micro red dot sight designed to fit the RMSc Footprint, offering a 6 MOA dot reticle and convenient features.

6 MOA Dot Reticle: The HS407K-X2 features a 6 MOA dot reticle, which provides a clear field of vision and is easy to pick up for quick target acquisition.

Battery Life and Brightness Setting: Powered by a CR1632 battery, it offers an impressive battery life of over 50,000 hours, ensuring long-lasting performance.

Mounts and Mounting Options: It features an altered RMSc footprint, making it compatible with a wide range of firearms

Ease of Use: It is designed with user-friendliness in mind. The two flush mount buttons on the sight are used to turn it on and off, while windage and elevation adjustments can be made using the screws on the top and side.

Why I love it: I have thoroughly enjoyed using the HS407K. Its 6 MOA dot reticle provides a clear and easy-to-acquire sight picture, allowing for precise shots. The extended battery life and convenient brightness adjustments have been impressive, ensuring reliable performance in various lighting conditions. 


  • Clear and easy-to-pick-up 6 MOA dot reticle
  • Long battery life and convenient brightness adjustments
  • User-friendly installation and maintenance


  • Smaller window size may require some adjustment and practice for shooters new to red dot sights

See detailed Comparison of Holosun 407k and 507K 

3. Vortex Defender-CCW – Latest red dots with rmsc footprint

Vortex Optics Defender-CCW Micro Red Dot Sight - 3 MOA
  • A 3 MOA red dot built for modern everyday carry, the...
  • Meant for those who prioritize personal protection, the...
  • Motion activation automatically wakes up the red dot...
  • The large, aspherical lens provides a class-leading...
  • Waterproof, shockproof and with ArmorTek coating...

The Defender-CCW is a durable and reliable micro red dot sight designed to fit the Shield RMSc footprint, offering a larger window size and improved durability compared to previous Vortex models.

Top-Loading Battery Compartment: The CCW utilizes a top-loading battery compartment and uses a CR1632 battery, making battery replacement quick and easy.

ShockShield: The red dot sight features a polymer insert called ShockShield on the top, which absorbs shock and enhances durability.

Auto Shut Off and Motion Activation: If left motionless for 14 hours, the CCW automatically powers down and powers back on upon detecting motion. The feature can be manually turned off.

Why I love it: Having extensively tested the Vortex Defender-CCW, I am thoroughly impressed by its performance and durability. The larger window size compared to previous Vortex models provides a clear and unobstructed sight picture. The auto shut off and motion activation provide convenience and help conserve battery life. 


  • Top-loading battery compartment for easy battery replacement
  • ShockShield and Fast Rack features enhance durability and grip
  • Auto shut off and motion activation for convenience and battery conservation


  • Adjustments lack tactile or audible clicks, making sight-in process less precise
  • Manufactured in China 

4. SIG SAUER Romeo Zero Elite – Budget Friendly 

SIG SAUER RomeoZero Elite 1x24mm 3 MOA Red Dot Shockproof Open Reflex Handgun Sight Compatible with Springfield Hellcat OSP, Glock G43X MOS & SIG Sauer P365 Optics-Ready Pistols
  • SIG SAUER PISTOL SIGHT - Scratch-resistant glass...
  • DURABLE - Carbon-infused polymer housing with...
  • VISIBLE - All rear surfaces of the housing have...
  • COMPATIBILITY - This SIG SAUER red dot sight is...
  • SPECIFICATION - Magnification: 1x; Objective Lens...

The Romeo Zero Elite is a compact micro red dot sight designed for EDC pistols, featuring a glass aspheric lens and multiple reticle options.

Finger TAP Operated Circuit System: The Romeo Zero Elite incorporates a finger TAP operated circuit system, allowing users to adjust the reticle brightness by tapping the lens hood with a large hand.

Glass Aspheric Lens: Unlike many micro red dot sights that use polymer lenses, the Romeo Zero Elite utilizes a coated glass aspheric lens, providing better clarity, reduced distortion, and increased scratch resistance.

Motion-Activated Sensor: The sight features SIG SAUER’s MOTAC sensor, which automatically powers up the sight when it detects motion and powers it down when not in use, preserving battery life.

Why I love it: As an expert who has extensively tested the SIG SAUER Romeo Zero Elite, I am highly impressed by its overall performance and features. The finger TAP operated circuit system allows for convenient brightness adjustments, and the glass aspheric lens enhances clarity and durability. 


  • Finger TAP operated circuit system for easy reticle brightness adjustments
  • Coated glass aspheric lens for improved clarity and scratch resistance
  • Motion-activated sensor for efficient battery usage


  • Adjustment clicks could be more tactile or audible for precise sight-in process

Compare Sig Romeo Zero & Holosun 507k.

5. Holosun EPS Carry Enclosed – Best Enclosed Body RMSC Red dot 

HOLOSUN EPS Carry Green 6 MOA Dot Reflex Pistol Sight - Waterproof Shake-Awake Parallax-Free Enclosed Sight for Subcompact Handguns with 12 Brightness Settings & RMSc-to-K Footprint Adapter Plate
  • HOLOSUN REFLEX SIGHT - The EPS Carry-GR-6 is an...
  • HIGH PERFORMANCE - EPS Carry-GR-6 handgun sight has...
  • SHAKE AWAKE TECHNOLOGY - Extends battery life by...
  • MULTILAYER REFLECTIVE GLASS - This green dot sight is...
  • SPECIFICATION - Reticle: 6 MOA Dot; Light Wavelength:...

The EPS Carry is a compact red dot sight designed for compact and subcompact handguns, featuring an enclosed emitter and compatibility with RMSc footprint optics cuts.

Enclosed Emitter: The EPS Carry utilizes a closed emitter design, providing better resistance to rain and dust compared to open emitter red dot sights.

Battery Life: The EPS Carry offers a battery life of approximately 5,000 hours, providing long-lasting performance.

Dot Size and Reticle Options: The holosun EPS Carry is available in multiple dot sizes, including 2 MOA, 6 MOA, and a combination of 2 MOA dot with a 32 MOA ring.

Why I love it: It excels in reliability and functionality. The enclosed emitter design offers enhanced durability and protection against adverse weather conditions. 


  • Enclosed emitter design for improved resistance to rain and dust
  • Crisp and round dot reticle for precise aiming


  • Potential starburst effect when brightness is set too high for ambient light conditions

6. Swampfox Sentinel – Best Value for Money

Swampfox Sentinel Micro Reflex, Manual Brightness, Red Dot
  • IN THE BOX: Optix w/sheath, screwdriver, lens cloth,...
  • MANUAL BRIGHTNESS MODEL: Features ten manually adjusted...
  • COMPACT UNOBSTROCTIVE FIT: Shoehorned into this tiny...
  • DUTY GRADE: Made from 7075 aluminum that is hard coat...
  • DOUBLE THE LIFE: The CR2032 battery effectively doubles...

The Swampfox Sentinel is a compact red dot sight designed for subcompact pistols, offering a clear lens, durable construction, and various reticle and brightness options.

Minimal View Obstruction: The Sentinel features a thin lens hood that minimizes view obstruction, allowing users to aim with both eyes open without the thick lens frame getting in the way.

Durable Body: Constructed with a durable 7075-T6 aluminum body, the Sentinel can withstand the rigors of charging the slide against belts or hard surfaces without compromising its functionality.

Additional Protection: The Sentinel can be paired with the Ironslides Shield (sold separately) to add extra protection to the lens hood.

Why I love it: The Swampfox Sentinel stands out with its sleek design, durability, and versatile brightness options. Overall, it’s a reliable and feature-rich red dot sight for subcompact pistols.


  • Minimal view obstruction for enhanced aiming with both eyes open
  • Durable 7075-T6 aluminum body withstands harsh conditions
  • Compact and lightweight design for easy mounting and carrying


  • Battery replacement process may require removing the Best RMSc Footprint Optics

Comparison of Swampfox Sentinel & Holosun 507k

7. Hex WASP- Best for Beginners

SPRINGFIELD ARMORY GE5077MICRET Hex Wasp Micro Red Dot Sight Springfield
  • 3.5 MOA Dot, Red .5 MOA Adjustment (90 MOA Windage and...
  • 65,000 Hours Glass Lens, Scratch Resistant / Anti Glare...
  • 6061 T6 Hardcoat Aluminum Housing. IPX7 Waterproof
  • .95" W x .86" H x 1.6" L
  • 0.7 oz (2) sets of screws included

The Springfield Armory Hex WASP is a micro red dot sight designed with the RMSc footprint, offering a lightweight and well-designed optic for subcompact pistols.

Serrated Optic Body: The Hex WASP features an optic serration on its body, providing enhanced grip for easy manipulation and slide racking.

Thick Lens Frame: With a robust lens frame, the Hex WASP can withstand slide racking against hard surfaces, similar to the RMRcc.

Finer MOA Dot Adjustment: The Hex WASP offers a finer adjustment with a 0.5 MOA per click, allowing for more precise zeroing of the optic.

Automatic Brightness Adjustment: The Hex WASP utilizes an automatic brightness adjustment feature with a light sensor that detects ambient light sources.

Why I love it: The Hex WASP stands out with its lightweight design, durable construction, and practical features. The serrated optic body enhances grip and manipulation, while the thick lens frame ensures durability during slide racking. 


  • Lightweight and compact design
  • Serrated optic body for improved grip
  • Thick lens frame for durability and slide racking


  • Lower battery life compared to some other options

8. Riton Optics X3 Tactix MPRD – Best Affordable RMSC Red Dot

The X3 Tactix MPRD is a highly versatile and compact red dot sight with a 3 MOA dot and a Shield RMS-C footprint, offering ease of use and compatibility with various subcompact pistols.

Sturdy Construction: The overall quality of the red dot sight is robust, providing a slightly beefier build compared to some other options.

Easy Adjustment: The side buttons on the X3 Tactix MPRD are designed to be easily adjusted, making it convenient for users with larger fingers or those wearing gloves.

Auto Shut Off: The sight includes a 12-hour auto shut-off feature, conserving battery life when the sight is not in use.

Compact Design: The X3 Tactix MPRD features a highly versatile and compact design, making it suitable for a wide range of subcompact pistols.

Why I love it: I appreciate the Riton Optics X3 Tactix MPRD for its sturdy construction, easy adjustment buttons, and compatibility with a range of subcompact pistols. The compact design makes it ideal for concealed carry or everyday carry purposes. 


  • Sturdy construction
  • Easy adjustment buttons
  • 3 MOA dot for precise aiming
  • Night vision compatibility on level 1-2


  • Potential zero loss after firing multiple shots

Final Verdict

As a professional shooter, my journey through these eight red dot sights designed for the RMSc footprint has been enlightening. From compact designs, advanced features to high-end durability, each optic brings unique strengths to the table.

The HOLOSUN HS507K-X2, with its outstanding reliability and performance, tops my list.

However, personal preferences play a crucial role in selection and ultimately, each of these RMSc footprint compatible optics promises a seamless, efficient, and reliable shooting experience.


Which optics use the RMSc footprint?

The optics with rmsc footprint include HOLOSUN HS507K-X2, HOLOSUN HS407K X2, Vortex Optics Defender-CCW and many more.

Will Holosun 507K fit RMSc?

Yes, the Holosun 507K is designed to fit the RMSc footprint.

What has the same footprint as Holosun 507K?

The sights that share the same footprint as the Holosun 507K include HOLOSUN HS407K X2, Vortex Optics Defender-CCW, SIG SAUER Romeo Zero Elite and others.

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I'm Micheal, an avid shooter and hunting enthusiast from Texas. I'm a recreational shooter who loves to spend time at the range and enjoy learning about new firearms and gears. I love to write about guns and share my passion for shooting with others.

5 thoughts on “8 Best RMSc Footprint Optics”

  1. Loved your insights on the Vortex Defender-CCW. I’ve been a Vortex fan for years. Just wondering, have you noticed any issues with the auto shut off feature in practical use?

    • Thanks for your comment! I’m a Vortex fan myself. Regarding the auto shut off on the Defender-CCW, I’ve found it to be pretty reliable. It’s a smart feature that conserves battery, but it kicks in seamlessly when you need it. No issues in my experience, it’s been smooth and efficient!

  2. Great article but Im torn between the HOLOSUN EPS Carry and the Swampfox Sentinel. I want something durable but also easy to use. Any advice?

    • That’s a tough choice, both are great! If durability is your main concern, the HOLOSUN EPS Carry’s enclosed emitter is top-notch for protection against the elements. But if you prefer a more streamlined design and ease of use, the Swampfox Sentinel is a fantastic choice. It’s really down to what matters more for your shooting style and needs.


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